<template>
  <!-- 主页分类 -->
  <div class="home-category" @mouseleave="currCategoryId = null">
    <ul class="menu">
      <li :class="{ active: currCategoryId === item.id }" v-for="item in list" :key="item.id" @mouseenter="currCategory = item; currCategoryId = item.id">
        <RouterLink to="/">{{ item.name }}</RouterLink>
        <template v-if="item.children">
          <RouterLink to="/" v-for="sub in item.children" :key="sub.id">{{ sub.name }}</RouterLink>
        </template>
        <template v-else>
          <XtxSkeleton width="60px" height="18px" bg="rgba(255,255,255,0.2)"/>
          <XtxSkeleton width="50px" height="18px" bg="rgba(255,255,255,0.2)" style="margin-left: 5px;"/>
        </template>
      </li>
    </ul>
    <!-- 弹层 -->
    <div class="layer">
      <h4>分类推荐 <small>根据您的购买或浏览记录推荐</small></h4>
      <ul v-if="currCategory && currCategory.goods && currCategory.goods.length">
        <li :class="{ brand: currCategory.name === '品牌' }" v-for="item in currCategory.goods" :key="item.id">
          <RouterLink to="/">
            <img :src="item.picture" alt="">
            <div class="info" v-if="currCategory.name !== '品牌'">
              <p class="name ellipsis-2">{{item.name}}</p>
              <p class="desc ellipsis">{{item.desc}}</p>
              <p class="price"><i>¥</i>{{item.price}}</p>
            </div>
            <div class="info" v-else>
              <p class="place"><i class="iconfont icon-dingwei"></i>{{item.place}}</p>
              <p class="name ellipsis">{{item.name}}</p>
              <p class="desc ellipsis-2">{{item.desc}}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
    </div>
  </div>
</template>

<script setup>
import { computed, reactive, ref } from 'vue'
import { useStore } from 'vuex'
import { findBrand } from '@/api/home'
const store = useStore()

// 准备品牌数据结构
const brand = reactive({
  id: 'brand',
  name: '品牌',
  children: [{ id: 'brand_children', name: '品牌推荐' }],
  goods: []
})

// 计算属性使用时 也需要value属性
const list = computed(() => {
  // 从vuex中取出 分类数据
  const nList = store.state.category.list.map(item => {
    return {
      id: item.id,
      name: item.name,
      // 拥有children属性时 才截取
      children: item.children && item.children.slice(0, 2),
      goods: item.goods
    }
  })
  nList.push(brand)
  return nList
})
// 自主    外包
// 当前移入的分类ID
const currCategoryId = ref(null)
// 当前移入的分类
const currCategory = ref(null)

// 调用接口 获取品牌数据
findBrand(6).then(data => {
  brand.goods = data.result
})

</script>

<style lang="scss" scoped>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0, 0, 0, 0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover, &.active {
        background: $xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
  .layer {
    width: 990px;
    height: 500px;
    background: rgba(255,255,255,0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;
    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;
      small {
        font-size: 16px;
        color: #666;
      }
    }
    ul {
      display: flex;
      flex-wrap: wrap;
      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;
        &:nth-child(3n) {
          margin-right: 0;
        }
        &.brand {
          height: 180px;
          a {
            align-items: flex-start;
            img {
              width: 120px;
              height: 150px;
            }
            .info {
              p {
                margin-top: 8px;
              }
              .place {
                color: #999;
              }
            }
          }
        }
        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;
          &:hover {
            background: #e3f9f4;
          }
          img {
              width: 95px;
              height: 95px;
          }
          .info {
            padding-left: 10px;
            line-height: 24px;
            width: 190px;
            .name {
              font-size: 16px;
              color: #666;
            }
            .desc {
              color: #999;
            }
            .price {
              font-size: 22px;
              color: $priceColor;
              i {
                font-size: 16px;
              }
            }
          }
        }
      }
    }
  }
  &:hover {
    .layer {
      display: block;
    }
  }
}

</style>
